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Canon EOS R Shutter Calibration | Shutter Speed Timing & Shutter Count Resets

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Shutter Timing
Calibrate your shutter without expensive test equipment
Shutter Timing

Fine-tune high shutter speeds using histograms — no costly test gear required.

The software guides you step-by-step, saving time and effort.

⚠️ For accurate results, use a calibrated light source like a lightbox.

X Contact Timing
Check and adjust X Contact Timing if needed
X Contact Timing
Shutter Count
Reset the current Shutter Count to '0' after a shutter replacement
Shutter Count

View the current Shutter Count and number of Previous Shutters.
You can reset the number of Previous Shutters if necessary.

Release Count
Changing the Count in the Camera's Menu
Release Count
This model’s software lets you reset the Release Count — essential when replacing the Main Board without original data.

⚠️ Looking to change the number displayed in the camera’s menu or in shutter-count apps? Both are actually the Release Count! You must change the RELEASE COUNT.

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